#include <iostream>
using namespace std;

int blend = 0;//初始化存储元素
int main(int argc, char const *argv[])
{
    for (int i = 1; i <= 100; i++)
    {
        blend = i + blend;
    }
    
    cout << "1 -100 的和为：" << blend<<endl;
    return 0;
}
